LOEWE Control Interface User manual

Brand: LOEWE

Model: Control Interface

Category: TV set-top boxes

Type: User manual

Loewe

Control Interface Specification

for Chassis SL3xx/SL4xx

V4.1.1

Loewe

Control Interface Specification

1 Revision History

Version Date Name Department Description

0.1 2005-08-05 HG SW TV Initial draft (tentative, not reviewed)

0.2 2006-09-21 AB SW TV Results of review on July 26

2006 added

- baud rate setting via service menu

- query values by ‘?’

- add new commands

2006-09-26 HG SW TV Formal changes

0.3 2007-03-16 AB SW TV - all supported port settings added

- bass/treble changed to bass0,bass1/treble0,treble1

- software version added since a command is available

- status values modied

- command “frontkeys” exchanged by “keys”

- Appendix 1 for IR codes added

0.4 2007-03-22 AB SW TV status parameter corrected

0.5 2007-04-26 AB SW TV - command “keys” replaced by command “cong”

- command “data” extended by dierent audio and video parameter

- command “proglist” added

- command “help”: returns only list of available commands, no additional

info for each command

- IR codes for local keys added to IR table (Appendix)

0.6 2007-05-02 AB SW TV - commands “time” and “timer” added

0.7 2007-05-25 AB SW TV - AV channels for prog command: HDR and Photoviewer added

- status command: substatus “uninit” added

- power command: powermode “init” added

- proglist command: parameter avtv and avradio added for reading

additional inputs of tv and radio mode

- increment and decrement for command data added (via +/-)

- notication for command data added.

0.8 2007-05-20 AB SW TV some corrections

1.0 2007-06-06 AB SW TV - proglist command extended for favourite lists

- data command: maxvolume added

2007-06-11 AB SW TV - ir command: value of status bits for single command corrected; ir

sequence for complete key press added

2007-06-19 AB SW TV - data command: favourite added to get/set active favourites

1.1 2007-06-25 AB SW TV notify command: extended to set the format for notications

1.1.1 2007-07-09 AB SW TV - Software version for command “notify format” corrected

Impressum

Loewe Technologies GmbH

Industriestraße 11

D-96317 Kronach

www.loewe.tv

Releasedatum 2018-04-27, V4.1.1

Redaktionsdatum 12/18-1.0 PS

Die Informationen in diesem Dokument können sich ohne vorherige Ankündigung ändern und stellen keinerlei Verpflichtung seitens der Loewe

Technologies GmbH dar.

Alle Rechte, auch die der Übersetzung, technische Änderungen sowie Irrtümer vorbehalten.

Loewe

Control Interface Specification

2.0.0 2008-02-14 AB SW TV dynamic menus added

2008-02-22 AB SW TV parameter pip and pipProg added for dynamic menu ‘message’

2008-03-30 AB SW TV command proglist extended by paging and radio favourites

2008-04-01 AB SW TV command timer extended to program a timer for an arbitrary point of time

2008-08-04 AB SW TV some IR codes added to appendix 1

2.0.1 2009-09-03 AB SW TV - ir command: Status bits corrected for simulating a complete key event

- prog command: HDMI3 and MusicBox added to AV channels

3.0.0 2010-06-14 AB SW TV Modications for chassis SL1xx added.

3.0.1 2010-10-21 AB SW TV - Description of RJ12 socket added.

- Settings for Microsoft Windows HyperTerminal added for testing the

interface

- prog command: Browser channel added

3.0.2 2011-06-22 OK LOH - Added new browser command

3.1.0 2011-09-20 AB SW TV epg command added

4.0.0 2013-08-19 AB MW Document updated for SL2xx

4.0.1 2014-01-13 AB MW Error messages for timer command updated.

2014-01-27 AB MW Hint for ir command added.

2014-02-11 AB MW Version info updated

SL3xx

4.0.1

2015-04-30 AB MW SL3xx version created (based on V4.0.1 of SL2xx)

IR codes updated (Appendix 1)

4.0.2 2015-06-17 AB MW power command extended to switch-on the TV set with certain AV input

or station number

4.0.3 2015-08-17 AB MW - dynamic menus added

- ir command supported without status parameter for simulate as short

key press

4.1.0 2015-09-17 AB MW status command: sub-mode “busy” added

4.1.1 2018-04-13 AB Software

Engineering

prog command: SPDIF-in not available for SL3xx/SL4xx

2018-04-13 AB Software

Engineering

Appendix IR code: Code 72 (TV mode on) removed. Code 22 has to be

used.

2018-04-13 AB Software

Engineering

- Pin1 of RJ12 socket corrected (=Modulated RSIG-Signal)

- data command: maxvolume added

2018-04-13 AB Software

Engineering

Terminal for testing: Description for PuTTY added (Hyper Terminal

removed).

2018-04-27 AB Software

Engineering

Pronto hex codes added for RC5 code in Appendix 1

2 Open Items

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Control Interface Specification

3 Table of Contents

1 Revision History ............................................................................................................................................................................ 2

2 Open Items .................................................................................................................................................................................... 3

3 Table of Contents .......................................................................................................................................................................... 4

4 Revision History ............................................................................................................................................................................ 6

5 General .......................................................................................................................................................................................... 6

5.1 Differences to chassis SL1xx ...........................................................................................................................................................................6

5.2 Differences to chassis SL2xx........................................................................................................................................................................... 7

6 Requirements.................................................................................................................................................................................7

6.1 Hardware interface ........................................................................................................................................................................................... 7

6.2 Test via terminal program ................................................................................................................................................................................ 8

7 Protocol Format ............................................................................................................................................................................ 8

7.1 Physical Layer ....................................................................................................................................................................................................8

7.2 Data Link Layer ..................................................................................................................................................................................................9

7.3 Application Layer ..............................................................................................................................................................................................9

7.3.1 Common Message Structure .........................................................................................................................................................................9

7.3.2 Command ..........................................................................................................................................................................................................9

7.3.3 Response ......................................................................................................................................................................................................... 10

7.3.4 Notification .......................................................................................................................................................................................................10

8 Message Lists...............................................................................................................................................................................10

8.1 Commands ......................................................................................................................................................................................................10

8.2 Responses ....................................................................................................................................................................................................... 12

8.3 Notifications ..................................................................................................................................................................................................... 13

8.4 Message Details .............................................................................................................................................................................................. 14

8.4.1 data ................................................................................................................................................................................................................... 14

8.4.2 ident .................................................................................................................................................................................................................. 15

8.4.3 ir ......................................................................................................................................................................................................................... 15

8.4.4 notify ..................................................................................................................................................................................................................17

8.4.5 power .................................................................................................................................................................................................................17

8.4.6 prog ................................................................................................................................................................................................................... 18

8.4.7 progdata ........................................................................................................................................................................................................... 19

8.4.8 proglist .............................................................................................................................................................................................................. 19

8.4.8.1 Get the available favourites ............................................................................................................................................................................ 19

8.4.8.2 Get the stations of a favourite or the AV list .................................................................................................................................................20

8.4.8.3 Get program list page by page ......................................................................................................................................................................20

8.4.8.4 proglist notification ......................................................................................................................................................................................... 21

8.4.9 range ................................................................................................................................................................................................................. 21

8.4.10 status ................................................................................................................................................................................................................ 21

8.4.11 time ...................................................................................................................................................................................................................23

8.4.12 timer ..................................................................................................................................................................................................................23

8.4.13 config ................................................................................................................................................................................................................24

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Control Interface Specification

8.4.14 help ....................................................................................................................................................................................................................24

8.4.15 version ..............................................................................................................................................................................................................25

8.4.16 msg ...................................................................................................................................................................................................................25

8.4.17 dmenu ..............................................................................................................................................................................................................25

8.4.17.1 Menu type “list” ................................................................................................................................................................................................25

8.4.17.2 Menu type “message” ....................................................................................................................................................................................25

8.4.17.3 Entry points ...................................................................................................................................................................................................... 25

8.4.17.4 Command format ........................................................................................................................................................................................... 26

8.4.17.4.1 Subcommand define ..................................................................................................................................................................................26

8.4.17.4.2 Subcommand content ...............................................................................................................................................................................27

8.4.17.4.3 Subcommand status ..................................................................................................................................................................................28

8.4.17.4.4 Subcommand event ....................................................................................................................................................................................29

8.4.17.4.5 Subcommand entry ....................................................................................................................................................................................29

8.4.17.4.6 Subcommand undefine �� 30

8.4.17.5 Handling of Dynamic menus ........................................................................................................................................................................ 30

8.4.17.6 Examples ......................................................................................................................................................................................................... 30

8.4.17.6.1 Entry Points ..................................................................................................................................................................................................... 30

8.4.17.6.2 Message ........................................................................................................................................................................................................... 31

8.4.17.6.3 List ..................................................................................................................................................................................................................... 31

8.4.18 browser ............................................................................................................................................................................................................. 32

8.4.19 epg ....................................................................................................................................................................................................................32

9 Configuration Data and Limit Values ......................................................................................................................................... 33

10 AMX ............................................................................................................................................................................................. 34

Appendix 1: IR codes .................................................................................................................................................................................................. 34

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Control Interface Specification

4 Revision History

Document Description

ControlInterfaceSpecication_SL1xx_V3.1.0_20110930.pdf Loewe Control Interface specication for chassis SL1xx.

5 General

This document denes a simple ASCII-based (but 8 bit) control interface via RS-232C.

The protocol has the following properties:

• Simple enough for to be emulated by any terminal program

• Readable command names

• Numbers transferred as ASCII strings, not as binary data

• Asymmetric at the application layer (commands vs. response / notication)

• Asymmetric at the data link layer (one-sided ow control only)

• No error protection

Possible applications are:

• Remote control of TV sets in a hotel installation

• Remote control in a home AV installation

• Remote control of public monitors

• Service (with limitations)

5.1 Differences to chassis SL1xx

• proglist command: The handling of the station list has been completely changed with chassis

SL2xx/SL3xx. There are no more blocks for each front-end in one list. The station list of each

front-end is stored in a separate favourite list. Additionally personal lists can be created which can

contain stations with dierent front-ends in an arbitrary order. So the proglist command still exists,

but it is used in a dierent way. The command is not compatible with SL1xx. See chapter 8.4.8.

• prog command: Due to the new concept of the station/favourite lists also the prog command has

been extended by an optional parameter, the list-name. It is necessary to change to a station of

another favourite.

Please see also the note for AV inputs with negative station numbers in chapter 8.4.6.

• timer command: Due to the new concept of the station/favourite lists also the timer command has

been extended by an optional parameter, the list-name.

Recording to av1 is not possible.

• time command: the local time oset is dened in minutes now, in SL1xx it is dened in hours.

• “data favourite” does no longer exists. To activate a station of another favourite list you have to use

the prog command now: prog [program number] [<”list name”>]

• cong command: ir and frontkeys can be deactivated now also in consumer mode, not only when

hotel mode is active. The ir notication has to be requested explicitly with “notify 1 ir”.

• ir command: With sl1xx most ir keys could be simulated with sending a single ir command with

status value = 3 (rst key press + auto repeat). In SL3xx/SL4xx it is recommended to send

always two ir commands, rst with status value = 3 and the second one with status value = 8 (key

released). See section “Simulate a complete key event” in chapter 8.4.3.

• Dynamic menus

The colour keys are no longer supported due to the new GUI concept of SL2xx/SL3xx/ SL4xx. But

for this the function keys F1, F2, F3 and F4 have been introduced.

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Control Interface Specification

5.2 Differences to chassis SL2xx

• Baudrates

SL3xx/SL4xx does not support baudrates with 76800 and 115200 bps. The maximum baudrate is

57600 bps.

6 Requirements

The RS232 interface is supported by SL3xx chassis since version V1.1.14.

6.1 Hardware interface

The RS232 interface is available via an RJ12 socket:

Female connector on the side of TV set,

viewed towards connector pins.

Pin Signal Signal requirements

1 IR-Link Modulated RSIG-Signal

2 GND Ground

3 TxD RS232 Data from TV, Standard RS232 specication

4 NC Not connected

5 RxD RS232 Data to TV, Standard RS232 specication

6 IR from TV VoL < 1.5V

VoH > 3.5V

5V signal, internal 4K7 pull-up resistor in connected device requested.

By default the signal is modulated (veried for remote control with 36 kHz carrier). If any hotel

mode is active the signal is demodulated, but can be congured to demodulated (Hotel menu,

menu item IR Link).

For connecting the TV set to a D-Sub 9 socket an adapter cable is available, Art.No. 70499 001.

The pin mapping of a RJ12-to-D-Sub-9 adapter has to be as follows:

RJ12 Pin D-Sub 9 pin Signal

2 5 GND

3 2 Data from TV

5 3 Data to TV

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Control Interface Specification

6.2 Test via terminal program

The interface can be easily tested by using a terminal program. Here are the settings for the open source

program PuTTY at 9600 baud for port COM5:

7 Protocol Format

7.1 Physical Layer

• Bidirectional communication by RS-232C lines TxD and RxD (no control lines used)

• Port settings:

o modes:

- 8 bit async

- 9 bit

- 8 bit parity

o Parity: Even, Odd

o Stopbits: 1 stopbit, 2 stopbit

o Baud rates: 2400, 4800, 9600, 19200, 28800, 38400, 57600 bps

o Default settings are: 9600 baud, 8 bit async, no parity, 1 stopbit

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Control Interface Specification

The port settings can be adjusted in the service menu of the TV set, menu item “RS232”, “port

settings”.

This menu can also be opened by pressing the function key on the front panel (M or ) and

simultaneously pressing key ‘7’ of the remote control.

7.2 Data Link Layer

The data link layer uses is an asymmetric, connectionless and line-oriented protocol:

The TV set will read in an entire data line of max. RCI_LINE_LENGTH_LIMIT 8 bit characters, and

interprets it as soon as a line termination character has been received. Both carriage return (CR, 0x0D)

and line feed (LF, 0x0A) character will be accepted as line termination characters, a line feed character

following a carriage return character will be ignored.

The TV set will not mirror received characters, and the counterpart must not mirror any received

characters.

The TV sends either lines terminated by a CR/LF combination, or the prompt character RCI_PROMPT_

CHAR as the rst character of a new line (following a LF character). The counterpart should not send (i.e.

terminate by CR and/or LF) a new line before the RCI_PROMPT_CHAR has been received, but type-

ahead is guaranteed for at least up to another RCI_LINE_LENGTH_LIMIT bytes.

7.3 Application Layer

The application layer transfers messages. The message types “command”, “response” and “notication”

exist. This classication has no eect on the notation of the messages. It describes only the functionality of

the messages sent to or received from the TV set.

7.3.1 Common Message Structure

A message consists of a message id followed by a space character, and optionally followed by a list of

parameters.

The message id is a text string conforming to the pattern [A-Za-z][A-Za-z0-9_]*.

Parameters are decimal or hexadecimal numbers or text strings separated by a space. Numbers are

decimal by default, hexadecimal numbers are preceded by a single ASCII quote.

Strings must be enclosed in double quotes if they contain spaces. The following control characters are

supported using the backslash:

“\n”: line feed

“\r”: carriage return

“\t”: tab

“\\”: backslash

“\””: double quote

The meaning of a parameter depends on its position in the list.

In the following required parameter are described in squared brackets ([...]). Optional parameters are

enclosed by curly brackets ( {...}) additionally.

7.3.2 Command

A command is sent to the TV set. It consists of one single line.

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Control Interface Specification

7.3.3 Response

A response is sent by the TV set immediately after receipt of a command. It may consist of one or more

lines, the last line followed by the prompt character RCI_PROMPT_CHAR.

The content of the response to a valid command will be specic for that command, and has to be specied

for each command. If an immediate response is not possible, only a RCI_PROMPT_CHAR will be sent for

to allow subsequent commands, but the proper reply will be sent as a single notication later on. This is to

be specied in each case.

On receipt of an invalid command, the ASCII “?” will be displayed (followed by CR/LF and RCI_PROMPT_

CHAR as specied above).

7.3.4 Notification

Notications will be sent by the TV set depending on specic events, provided the specic notication has

been enabled by a preceding command. Notications are terminated with CR/LF and the prompt character

RCI_PROMPT_CHAR.

Since the RS232 version V1.1 the leading and/or trailing string for notications can be dened arbitrarily.

See the denition of the notify command.

8 Message Lists

Notes:

• All numbers in messages are ASCII, there are no binary data.

• Message texts are case-signicant.

• The space character is generally used as a word separator. Strings in parameters have to be

quoted if they contain spaces.

• Variable 8-bit text strings in message parameters are UTF-8 encoded unless specied otherwise.

Any xed texts are plain 7 bit ASCII.

8.1 Commands

For a detailed description of parameter values, see the additional tables/chapters under 8.4 Message

Details. Parameters in curly braces are optional. The column “SL1xx Version” contains the software version

of SL1xx chassis since the command is available.

Note: A command is always backward compatible when new features have been implemented with new TV

software! This is valid at least for a chassis generation.

Standby and Wakeup Commands:

Due to the standby concept not all commands are supported in standby. There are two dierent types of

commands which are supported in standby:

• Standby commands: Commands which are handled by the standby controller completely. There will be

no signicant delay for the response of the TV set.

• Wakeup commands: Commands which are accepted by the standby controller but which have to be

handled by the main controller (e.g. for reading the program list via command proglist).

For this the main controller is waked up (without picture and sound). After it has been booted the

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Control Interface Specification

command is handled. The boot up time is dierent for the dierent SL1xx chassis. Example: Chassis

SL121 has a boot up time of about 7 seconds!

If there are no further commands for 5 seconds the main controller is switched o again. The dierent

standby power states can be evaluated by the status command (see chapter 8.4.10).

The standby command type is described in the following table in the column “standby type”:

standby = Standby command

wakeup = Wakeup command

none = Command is not supported in standby at all.

Id Parameters Example RS232

version

SL3xx

version

standby

type

browser [command] [param] browser 0 http://www.

loewera.de

V 3.1 PV1.1.14 none

cong [ir 0/1/?] [localkeys 0/1/?] cong keys ir 0

localkeys 0

V1.0 PV1.1.14 standby

data [name] [values] ... [name] [values] data volume 17 V1.0 PV1.1.14 none

dmenu [dene/content/status/entry/undened] …

see chapter 8.4.17

V2.0 PV1.1.14 none

epg s [station number} epg s 1 V3.1 PV1.1.14 none

help help V1.0 PV1.1.14 standby

ident ident V1.0 PV1.1.14 standby

ir [system] [subsystem] [command] [status]

Since HL1 version V2.1.X the command is supported

without status parameter to simulate a single (short)

key press, but only when the TV is active, not in deep

standby:

[system] [subsystem] [command]

ir 0 0 1 3

ir 0 0 1

V1.0

V4.1

PV1.1.14

PV2.1.22

standby

msg [message text] msg “Hello world!” V1.0 PV1.1.14 none

notify [0/1] [id] ... [id] ... [0/1] [id] ... [id] notify 1 status prog 0 ir V1.0 PV1.1.14 wakeup

format [0/1/2/3] {[string]} {[string]} notify format 1 “\r\n!>” V1.1 PV1.1.14

power [o/tv/audio/radio/photo] power tv V1.0 PV1.1.14 wakeup

Optional parameter for “power tv”

tv {[program number]}

power tv -6 V4.0.1 PV2.0.17

prog [program number] prog 1001 V1.0 PV1.1.14 none

prog number -22 = MusicBox V2.0 PV1.1.14

prog number -13 = HDMI3 V2.0 PV1.1.14

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Control Interface Specification

Id Parameters Example RS232

version

SL3xx

version

standby

type

proglist To get the available favourite lists:

[tvlist/radiolist]

To get the station list of a favourite:

[tv/radio] [<“favourite name”>]

[av]

proglist tvlist

proglist tv “DVB-C”

proglist radio “My Fav1”

V1.0

PV1.1.14 wakeup

- paging [tv/radio/av] [<“favourite name”>] [page size]

- page [rst/last/next/+/prev/-]

- page [page number]

- page prog [program number]

- proglist paging tv

“DVB-C” 10

- proglist page +

- proglist page 10

V2.0 PV1.1.14 none

range [name] range volume V1.0 PV1.1.14 none

status status V1.0 PV1.1.14 standby

time [?]

[yyyy-mm-dd] [hh:mm:ss] {[local time oset]}

time 2007-05-31

10:30:00 60

V1.0 PV1.1.14 none

timer [add] [hdr] [station number] [duration] {<”list-name”>} timer add hdr 1 90 V1.0 PV1.1.14 wakeup

add [hdr] [station number] [date] [start time] [stop time]

{<”list-name”>}

timer add hdr 2 2008-

03-28 20:15 22:00

version version V1.0 PV1.1.14 standby

To request a parameter value a question mark has to be inserted instead of the value. The question mark is

not necessary (but valid) if the command has no parameter.

Examples:

data volume ? bass0 ? treble0 ?

data volume ?

status ?

status

Invalid:

data volume bass0 treble0

8.2 Responses

Id Parameters Example

data [name] [value] {[name] [value] ....} data volume 17

help [list of all supported commands] help cong

data

...

version

ident [type] [version] ident SL320 V4.1.0

ir [system] [subsystem] [command] [status] ir 0 0 1 ‚02

keys ir [0/1] local [0/1] keys ir 0 local 0

prog [program number] prog 1001

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Control Interface Specification

Id Parameters Example

proglist List of available favourites:

[tvlist/radiolist/avlist] [number of lists] [<”list name #1”>]

[<”list name #2”>] ... CR/LF

List of stations of a favourite:

[tv/radio] [<”list name”>] [number of programs] [program number] [program

name] CR/LF

[program number] [program name] CR/LF

...

[program number] [program name]

[av] [“<AVlist>”] [number of AV inputs] [input number] [input name] CR LF

...

[input number] [input name]

proglist tvlist 3 “DVB-C” “Analog”

“My Fav1”

Hint: The station name is encoded

in UTF-8 format.

proglist [tv/radio/av] [<”list name”>] paging count [number of programs] pages

[number of pages]

proglist [tv/radio] [<”list name”>] [number of programs] page [page number]

[program number [program name] CR/LF

program number] [program name] CR/LF

...

[program number] [program name]

proglist tv “DVB-C” paging count 67

pages 7

proglist tv 10 page 1 1 “Das Erste

HD”

2 “ZDF HD”

3 “RTL”

4 “SAT.1”

5 “ProSieben” ...

range [name] [lower limit] [upper limit] range bass -12 12

status [main] [sub] [pip] [record]

the sub mode “busy” is supported since SL3xx version V2.1.22.0, RS232

version V4.1.0

status tv ttx pipo reco

time [yyyy-mm-dd] [hh:mm:ss] [local time oset] time 2007-05-31 10:30:00 -1

version [protocol version] version 1.2.0

8.3 Notifications

Id Parameters Example

ir [system] [subsystem] [command] [status] ir 0 0 1 3

prog [program number] prog 123

status [main] [sub] [pip] [record]. status tv ttx pipo reco

data [parameter name] [parameter value] data volume 20

proglist changed [tv/radio] proglist changed tv

epg [content: p/f] [station number] [start time] [stop time] „[title]“ „[shortinfo]“ epg p 3 20:15 22:00 „CSI: Miami“

„Episode 75“

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Control Interface Specification

8.4 Message Details

8.4.1 data

This message may be used to query or to set a selection of internal data, mainly user settings. A parameter

value can be modied by a certain value or by incrementing or decrementing.

Format:

data [parameter name] [?/+/-/[value]] {[parameter name] [?/+/-/[value]]...}

Examples:

Query a value: data volume ?

Set a value: data volume 25

Increment a value: data volume +

Decrement a value: data volume –

Parameter name Contents Value Range

volume volume value 0..99 (maximum)

Hint: The user setting “maximum volume” is

considered!

maxvolume user dened upper limit for volume 10 .. 99

hpvolume headphone volume

Attention: available since SL3xx V2.2.18.0 and

SL3xx/SL4xx V3.1.2.0 (and higher).

0 ..99

mute mute on/o

Increment/decrement with +/- is not supported.

0/1

bass0 bass value for custom music sound -12 .. +12

bass1 bass value for custom movie sound -12 .. +12

treble0 treble value for custom music sound -12 .. +12

treble1 treble value for custom movie sound -12 .. +12

brightness brightness value for current video mode 0 .. 20

contrast contrast value for current video mode 0 .. 20

color color value for current video mode 0 ...20

sharpness sharpness value for current video mode 1 .. 5

3Dmode Switching on/o 3D and selecting the mode o / auto / sbs / tb

auto: automatic

sbs: side by side

tb: top/bottom

The permitted range of values may be queried by the corresponding range message.

Data values can also be activated for notication. Whenever a value of any parameter is modied a data

notication for the modied parameter is sent.

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Control Interface Specification

8.4.2 ident

The parameter list is a sequence of readable text strings. The rst string identies the TV type, the second

one the software version.

8.4.3 ir

This command allows to emulate infrared remote control commands when used as a command, or to

check the infrared receiver and decoder by monitoring notications of received infrared commands.

Via the status byte the ir receiver can be disabled. That means all commands received from the remote

control are ignored for TV control, but are forwarded as ir notication (if enabled). Only the ir commands

received from the control interface are handled by the TV set. So the external control device connected to

the control interface decides which ir commands are relevant.

Additionally the local keys are disabled. The events are not forwarded as ir notications!

Hint: After power o/on via main switch the keys are enabled again. To disable key permanently use the

command cong.

parameter: [system] [subsystem] [command] {[status]}

Since the SL3xx version V2.1.x the command is also supported without the status parameter to

simulate a short key press, but only when the TV is active, not in deep-standby.

For the relevant system, subsystem and command codes see Appendix 1.

status:

bit 0: rst command in sequence

bit 1: auto-repeat command

bit 2: delayed command; it denes once that a key has been pressed for more than 600 ms.

bit 3: key released

bit 4: IR receiver disabled

bit 4 – 7: don’t care (have to be zero)

To simulate a single IR command bit 0 and bit 1 has to set.

Example:

“TV on”

ir 0 0 22 3

To disable/enable the IR receiver an ir command has to be sent with bit4 = 1/0. To avoid any action by the

ir command use the following ones:

disable the ir receiver: ir 0 0 0 16

enable the ir receiver: ir 0 0 0 0

Simulating a complete key event

Some OSD elements or device controller evaluates the ir status in detail for dierent function. Examples:

• When the play key is pressed only short the HDR playback is started, if it pressed longer a

bookmark is set.

• OK key: Short press opens the small station list, long press opens the extended station list

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Control Interface Specification

For this the internal ir status is updated every 110 ms as long as IR signals are received from the remote

control. As the processing of the RS232 command can’t be guaranteed in the same way as the remote

control the update of the status has to be handled by the external application.

The status sequence dependent from the time the key is pressed is described below:

Time Status bits Status value

rst auto-repeat delayed key released

0 ms 1 1 3

110 ms 0

220 ms 0

330 ms 0

440 ms 0

550 ms 1 2

660 ms 1 1 6

770 ms 1 2

...

n * 110 ms 1 2

key is released 1 8

A complete key press exists at least of two ir commands, because the release of the key also has to be

sent. All other status settings only have to be sent, when the key has been pressed for the stated time.

ATTENTION: With SL3xx/SL4xx for several keys at least two ir command (rst with status value = 3,

second with status value = 8) has be sent to be sure that it will be handled by the TV set (e.g. for the

digit keys 0 – 9).

Example for digit key 1:

ir 0 0 1 3

ir 0 0 1 8

It is recommended always to send two commands to simulate a complete key event.

Since the SL3xx version PV2.1.x a short key press can be simulated with a single ir command without the

status parameter. So you can avoid sending two commands with status = 3 and status = 8.

Example for digit key 1:

ir 0 0 1

Hint: If the ir receiver is disabled (“ir 0 0 0 16”) and the notication for the ir command is activated

(“notify 1 ir”), the exact sequence is sent via RS232 when a key of the remote control is pressed.

The ir notication can’t be enabled by activating all notication (“notiy 1”), it has to be activated

explicitly with “notify 1 ir”.

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Control Interface Specification

8.4.4 notify

Notications are not sent automatically, but only on request. This message allows to enable or disable

specic notications. Only those messages listed in chapter 8.3 can be enabled.

Notications will be sent once after enabling a notication, and whenever the information has changed.

Format:

notify [0/1] {[id] ... [0/1] [id]...}

To activate/deactivate all notications notify 1 / notify 0 can be used.

Hint: The epg notication for present/following and the ir notication can’t be activated with notify 1 due

to the amount of data (e.g. for epg sent with every channel change). It has to be activated explicitly with

notify 1 epg / notify 1 ir. , but it is deactivated with notify 0.

Since the RS232 version V1.1 the leading and/or trailing strings for notications can be dened arbitrarily.

This might be necessary to distinguish notications from responses when using command sequences.

notify format [format: 0/1/2/3] {[string1] [string2]}

format:

0: Standard format. Notications are terminated by CR/LF and the prompt character.

1: Notications are sent with a trailing string dened by string1.

2: Notications are sent with a leading string dened by string1.

3: Notications are sent with a leading string dened by string1 and a trailing string dened

by string2.

The strings are limited by a maximum of 5 characters. The format parameter can’t be used in combination

with the parameter to enable/disable notications.

Examples:

notify format 0

notify format 1 “\r\n!>”

notify format 2 “!”

notify format 3 “@” “\r\n@>”

8.4.5 power

This command is used to switch the tv set to certain operation states:

parameter description

init If the TV is in standby after rst power on (via main switch) the program list is not initialized (amongst

others), so it is not available with the command proglist. In this case the command “power init” can

be used to start the TV without picture and sound. When the initialization is done the TV returns to

standby automatically. This can be evaluated with the command status.

If the TV is already initialized the command “power init” has no eect. The current state of the TV set

is not changed in this case.

o Switch tv to standby. If a record is active the TV will change to “active” mode only.

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Control Interface Specification

parameter description

tv {[program number]} Switch tv on with the last active tv channel.

Available since HL1-Version V2.0.17.0 (or higher):

[program number] is an optional parameter and can be used to switch-on the TV set with a certain AV

input or program number (of the last active station list).

Example:

Switch-on the TV set with HDMI 1:

power tv -6

audio Switch tv to radio mode with inactive screen (= audio mode) reproducing sound of last radio channel.

radio Switch tv to radio mode with active screen (=radio mode) reproducing sound of last radio channel.

For evaluating the current power mode use command “status”.

8.4.6 prog

This message may be used to query the current program number (if used without parameters), or to

request a switchover to a specic program number of a certain favourite. The message will be conrmed

immediately by a single RCI_PROMPT_CHAR, and a single prog notication containing the current

program number will be sent when the program change has either been completed or rejected. For to nd

out whether the request has been accepted, the returned program number has to be compared with the

requested program number.

Format:

prog [program number] {<”list-name”>}

If no list-name is added the TV changes to program number of the current active favourite.

Negative program numbers are reserved for AV channels. In this case no list-name has to be added.

NOTE: With an AV input also the favourite “AV list” is active. When it is active the command prog without

a list name will execute a change to another input of the AV list (e.g. “prog 2” will change to HDMI2). That

means: When an AV input is active you have to add the list-name always to change to a TV channel.

number AV channel additional information

-1 AV1

-2 AV2 Not available in SL3xx/SL4xx

-3 AV3 Not available in SL3xx/SL4xx

-4 AVS

-5 VGA (=PC-In)

-6 HDMI1

-7 HDMI2

-8 COMP-IN-1 Not available in SL3xx/SL4xx.

-9 COMP-IN-2 Not available in SL3xx/SL4xx.

-10 Audio-In-1

-11 Audio-In-2 Not available in SL3xx/SL4xx.

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Control Interface Specification

number AV channel additional information

-12 Audio-Digital-In (SPDIF In) Not available in SL3xx/SL4xx.

-13 HDMI3

-14 HDMI4

-15 to -19 reserved

-20 HDR playback This number is readable only. It can’t be used to start a HDR playback by sending

“prog -20”!!!

-21 Photoviewer This number is readable only. It can’t be used to start the Photoviewer.

-22 Musicplayer This number is readable only. It can’t be used to start the Musicplayer.

-23 Videoplayer This number is readable only. It can’t be used to start the VideoPlayer.

-24 Mediaplayer This number is readable only. It can’t be used to start the Mediaplayer mode.

-25 Internet Brower This number is readable only. It can’t be used to start the Internet Browser.

8.4.7 progdata

not implemented.

8.4.8 proglist

This message is used to get the available favourites and the containing program/stations or the list of the

AV inputs.

The program name is UTF-8 encoded. DVB channels also can contain some special character ([0xC2

0x86] / [0xC2 0x87]) to encode a short name.

[0xC2 0x86]: Begin of part of short name

[0xC2 0x86]: End of part of short name

Example:

[0xC2 0x86]S[0xC2 0x87]uper[0xC2 0x86] RTL[0xC2 0x87]

Long name: “Super RTL”

Short name: “S RTL”

To get the long name removed these special characters.

8.4.8.1 Get the available favourites

First you have to know the names of the available favourites.

Format for command:

proglist [tvlist/radiolist]

Format for response:

Proglist [tvlist/radiolist] [number of lists] [<”list name #1”>]

[<”list name #2”>] ... CR/LF

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Control Interface Specification

8.4.8.2 Get the stations of a favourite or the AV list

Via the name of the favourite you can request the list of staprogtions or the name of the AV inputs.

The program number and the program name are replied. The rst parameter of the response always

contains the program type information (tv/radio/av).

Format for command:

proglist [tv/radio] [<”list-name”>]

proglist [av]

Format for response:

proglist [tv/radio] [<”list-name”>] [number of programs] [[program number] “[program

name]” CR/LF]]...

Response for the AV list:

av “<AVlist>” [number of AV inputs] [[input number] “[input name]” CR LF]]...

The string “<AVlist>” is sent because the displayed name in the GUI depends on the selected menu

language, which is not known by the middleware.

8.4.8.3 Get program list page by page

The format of the chapter before is used to get the complete station list.

But it is also possible to request single pages of a favourite. The page size can be dened arbitrarily (2 –

255 items per page). E.g. this could be necessary for external devices without enough memory to store up

to 5000 channels.

For paging the page size has to be dened rst:

proglist paging [tv/radio] [<”list name”>] [items per page]

The TV will response by sending the total number of programs and the total number of pages:

proglist [tv/radio] [<”list name”>] paging count [number of channels] pages [number of

pages]

After this it is possible to navigate within the program list:

proglist page [rst/last/prev(+)/next(-)/<number of page>/

prog <program number>]

Get rst page: proglist page rst

Get last page: proglist page last

Get next page: proglist page next or proglist page +

Get previous page: proglist page prev or proglist page –

Get certain page by number: proglist page [page number]

The page number starts with 1 (rst page) and ends with number of pages (last page).

Get page containing a certain program number:

proglist page prog

The program number needs not to be the rst item of the page. It depends on the absolute position of

the program number within the complete list.

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LOEWE Control Interface User manual

Brand: LOEWE

Model: Control Interface

Category: TV set-top boxes

Type: User manual

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LOEWE Control Interface User manual

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